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The Understanding Of Genetics (biology Only) (GCSE Biology)

The following is a GCSE Biology test covering 'The Understanding Of Genetics (biology Only)' from the broader topic Inheritance, Variation And Evolution. The test is geared towards the AQA exam board style syllabus.
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Which evolutionary outcome can result from isolation (geographic or reproductive) of subpopulations over many generations?
Why are antibiotic resistance genes in bacteria an example of natural selection?
In a Punnett square cross between two heterozygous parents (Aa × Aa), what fraction of offspring will be homozygous recessive and show a recessive disorder?
Two animals from the same species show different fur colour because of differences in their genes. This is an example of what type of variation?
Which outcome is expected when natural selection acts on a population with heritable variation in beak size and the environment favours larger seeds?
What is meant by a “carrier” for a genetic disease?
Which term describes the physical appearance produced by an organism’s genes and environment?
Why might a harmful recessive allele persist in a population at low frequency?
Which process produces gametes with half the chromosome number and creates genetic variation by independent assortment and crossing over?
If a disorder is caused by a recessive allele, which genotype will show the disorder?
In Darwin’s theory, what role do environmental pressures (like predators or drought) play in evolution?